Generate validation report as JSON

[psmiraglia]

Scope of the pull request

The PR introduces the --out-form and --out-file switches. They instruct the application about how the validation report must be serialized (e.g. JSON, TXT, XML) and where it must be saved.

$ spid-compliant-certificates validator --out-file report.json --out-form json
   _____ _____ _____ _____     _____                      _ _             _
  / ____|  __ \_   _|  __ \   / ____|                    | (_)           | |
 | (___ | |__) || | | |  | | | |     ___  _ __ ___  _ __ | |_  __ _ _ __ | |_
  \___ \|  ___/ | | | |  | | | |    / _ \| '_ ` _ \| '_ \| | |/ _` | '_ \| __|
  ____) | |    _| |_| |__| | | |___| (_) | | | | | | |_) | | | (_| | | | | |_
 |_____/|_|   |_____|_____/   \_____\___/|_| |_| |_| .__/|_|_|\__,_|_| |_|\__|
   _____          _   _  __ _           _          | |
  / ____|        | | (_)/ _(_)         | |         |_|
 | |     ___ _ __| |_ _| |_ _  ___ __ _| |_ ___  ___
 | |    / _ \ '__| __| |  _| |/ __/ _` | __/ _ \/ __|
 | |___|  __/ |  | |_| | | | | (_| (_| | ||  __/\__ \
  \_____\___|_|   \__|_|_| |_|\___\__,_|\__\___||___/  v0.1




[I] Validating certificate /path/to/crt.pem against public sector specifications
[I] Certificate /path/to/crt.pem matches the public sector specifications

[ . . . ]

[I] Saving report as JSON in /path/to/report.json

Closed issues

• Close Validator report in json format #21
• Close Wrong f-string syntax #22

Added issues

• XML serializer for validation report #24
• TXT serializer for validation report #25

Tests

• I manually tested it
• I added unit test
• I ran the existing unit test and they do not fail